Abstract

Features of the controlled source radlomagnetotellurlc sounding method (CSRMT) are considered. Developed equipment RMT-C Is described. Features of the electromagnetic field of horizontal electric dipole are considered taking into account displacement currents in the air. The wave zone thus Is allocated at a certain distance from the source and the field there Is characterized by a number of essential differences comparing with the quasi-static zone. An example of the CSRMT method application for the solution of engineering-geological tasks in Chukotka Is presented.

Keywords

Radlomagnetotellurlc soundings, controlled source, horizontal electric dipole, wave zone,

Reference

  •  1) Veshev A.V. Elektroprofilirovanie na postoyannom i peremennom toke. 2-e izd., pererab. i dop. L.: Nedra, 1980. 391 s.

  •  2) Gordeev S.G., Sedelnikov E.S., Tarhov A.G. Elektrorazvedka metodom radiokip. M.: Nedra, 1981. 132 s.

  •  3) ParfentevP.A., PertelM.I. Pribor dlya izmereniya poverhnostnogo impedansa v SDV-SV-diapazone v volnovode Zemlya-Ionosfera. Alma-Ata: Gylym, 1991. S. 133-135.

  •  4) Shlykov A.A., Saraev A.K. Osobennosti elektromagnitnogo polya gorizontalnogo elektricheskogo dipolya v metode radiomagnitotelluricheskih zondirovaniy s kontroliruemym istochnikom // Vestn. S.-Peterb. un-ta. Ser. 7. 2013. Vyp. 4. S. 3-23.

  •  5) Bastani M. Enviro-MT - A New Controlled Source/Radio Magnetotelluric System. Acta Universitatis Upsaliensis: 2001. 179 p.

  •  6) Kalscheuer T., Pedersen L. B., Siripunvaraporn W. Radiomagnetotelluric two-dimensional forward and inverse modeling accounting for displacement currents, Geophys. J. Int., 2008, 175 (2), 486-514.

  •  7) McNeil, J.D., Labson, V.F. Geological mapping using VLF radio fields// M.N. Nabighian (ed.), Electromagnetic methods in applied Geophysics, 1991. V. 3, SEG, 521-640.

  •  8) Pellerin L., Wannamaker P.E. Multi-dimensional electromagnetic modeling and inversion with application to near-surface earth investigations. Computers and Electronics in Agriculture, 46 (2005), 71-102.

  •  9) Saraev A.K., Simakov A.E., Tezkan B. Foot, Mobile and Controlled Source Modifications of the Radiomagnetotelluric Method. Near Surface 2011 - 17th European Meeting of Environmental and Engineering Geophysics, Leicester, UK, 12-14 September 2011.

  •  10) Simakov A., Saraev A., Antonov N., Shlykov A., Tezkan B. Mobile and controlled source modifications of the radiomagnetotelluric method and prospects of their applications in the near-surface geophysics. IAGA WG 1.2 on Electromagnetic Induction in the Earth. 20th Workshop, Giza, Egypt, September 18-24, 2010.

  •  11) Simakov A., Saraev A. Application of the Controlled-source RMT Method for the Solution of Engineering Tasks in Chukotka Region. Near Surface 2011 - 17th European Meeting of Environmental and Engineering Geophysics, Leicester, UK, 12-14 September 2011.

  •  12) Shlykov A., Saraev A. Features of electromagnetic field of a horizontal electric dipole used in the controlled source RMT method. 75 th EAGE Conference & Exhibition. London, UK, 10-13 June 2013.

  •  13) Strangway D.W., Swift C.M., Holmer R.C. The application of audio-frequency magnetotelluric (AMT) to mineral exploration // Geophysics, Vol. 38, № 6, 1973. P. 1159-1175.

  •  14) Tezkan B., 2008. Radiomagnetotellurics. Groundwater geophysics: a tool for hydrogeology / Reinhard Kirsch (ed.), Berlin; Heidelberg: Springer, pp. 295-318.

  •  15) Tezkan B., Georgescu P. and Fauzi U., 2005. A radiomagnetotelluric survey on an oil-contaminated area near the Brazi Refinery, Romania, Geophysical Prospecting, 53, 311-323.

  •  16) Tezkan B., Saraev A. A new broadband radiomagnetotelluric instrument: application to near surface investigations, Near Surface Geophysics, 2008, 245-252.

  •  17) Turberg P., Muller I., and Flury F. 1994, Hydrogeological investigation of porous environments by radiomagnetotelluric-resistivity (RMT-R, 12-240 kHz), Journal of Applied Geophysics 31, 133-143.

  •  18) Zonge K.L., Hughes L.J. Controlled source audio-frequency magnetotellurics. Electromagnetic methods in applied geophysics. V. 2 - Applications. Series: Investigations in geophysics, No 3, 1991, p. 713-809.

Метод радиомагнитотеллурических зондирований с контролируемым источником

Сараев А.К. Симаков А.Е. Шлыков А.А.

Аннотация

Рассмотрены особенности метода радиомагнитотеллурических зондирований с контролируемым источником (РМТ-К). Приведены данные о разработанной аппаратуре. Анализируются особенности электромагнитного поля горизонтального электрического диполя, используемого в качестве источника в методе РМТ-К, с учетом токов смещения в воздухе. При этом на определенном удалении от источника выделяется волновая зона, поле в которой имеет ряд существенных отличий от квазистационарной зоны. Приведен пример применения метода РМТ-К при решении инженерно-геологических задач на Чукотке.

Ключевые слова

Радиомагнитотеллурические зондирования, контролируемый источник, горизонтальный электрический диполь, волновая зона,

Информация об авторах

Библиографическая ссылка

Сараев А.К. Симаков А.Е. Шлыков А.А. Метод радиомагнитотеллурических зондирований с контролируемым источником // Геофизика. 2014. № 1. С. 18-25.

Список литературы

  •  1) Вешев А.В. Электропрофилирование на постоянном и переменном токе. 2-е изд., перераб. и доп. Л.: Недра, 1980. 391 с.

  •  2) Гордеев С.Г., Седельников Е.С., Тархов А.Г. Электроразведка методом радиокип. М.: Недра, 1981. 132 с.

  •  3) ПарфентьевП.А., ПертельМ.И. Прибор для измерения поверхностного импеданса в СДВ-СВ-диапазоне в волноводе Земля-Ионосфера. Алма-Ата: Гылым, 1991. С. 133-135.

  •  4) Шлыков А.А., Сараев А.К. Особенности электромагнитного поля горизонтального электрического диполя в методе радиомагнитотеллурических зондирований с контролируемым источником // Вестн. С.-Петерб. ун-та. Сер. 7. 2013. Вып. 4. С. 3-23.

  •  5) Bastani M. Enviro-MT - A New Controlled Source/Radio Magnetotelluric System. Acta Universitatis Upsaliensis: 2001. 179 p.

  •  6) Kalscheuer T., Pedersen L. B., Siripunvaraporn W. Radiomagnetotelluric two-dimensional forward and inverse modeling accounting for displacement currents, Geophys. J. Int., 2008, 175 (2), 486-514.

  •  7) McNeil, J.D., Labson, V.F. Geological mapping using VLF radio fields// M.N. Nabighian (ed.), Electromagnetic methods in applied Geophysics, 1991. V. 3, SEG, 521-640.

  •  8) Pellerin L., Wannamaker P.E. Multi-dimensional electromagnetic modeling and inversion with application to near-surface earth investigations. Computers and Electronics in Agriculture, 46 (2005), 71-102.

  •  9) Saraev A.K., Simakov A.E., Tezkan B. Foot, Mobile and Controlled Source Modifications of the Radiomagnetotelluric Method. Near Surface 2011 - 17th European Meeting of Environmental and Engineering Geophysics, Leicester, UK, 12-14 September 2011.

  •  10) Simakov A., Saraev A., Antonov N., Shlykov A., Tezkan B. Mobile and controlled source modifications of the radiomagnetotelluric method and prospects of their applications in the near-surface geophysics. IAGA WG 1.2 on Electromagnetic Induction in the Earth. 20th Workshop, Giza, Egypt, September 18-24, 2010.

  •  11) Simakov A., Saraev A. Application of the Controlled-source RMT Method for the Solution of Engineering Tasks in Chukotka Region. Near Surface 2011 - 17th European Meeting of Environmental and Engineering Geophysics, Leicester, UK, 12-14 September 2011.

  •  12) Shlykov A., Saraev A. Features of electromagnetic field of a horizontal electric dipole used in the controlled source RMT method. 75 th EAGE Conference & Exhibition. London, UK, 10-13 June 2013.

  •  13) Strangway D.W., Swift C.M., Holmer R.C. The application of audio-frequency magnetotelluric (AMT) to mineral exploration // Geophysics, Vol. 38, № 6, 1973. P. 1159-1175.

  •  14) Tezkan B., 2008. Radiomagnetotellurics. Groundwater geophysics: a tool for hydrogeology / Reinhard Kirsch (ed.), Berlin; Heidelberg: Springer, pp. 295-318.

  •  15) Tezkan B., Georgescu P. and Fauzi U., 2005. A radiomagnetotelluric survey on an oil-contaminated area near the Brazi Refinery, Romania, Geophysical Prospecting, 53, 311-323.

  •  16) Tezkan B., Saraev A. A new broadband radiomagnetotelluric instrument: application to near surface investigations, Near Surface Geophysics, 2008, 245-252.

  •  17) Turberg P., Muller I., and Flury F. 1994, Hydrogeological investigation of porous environments by radiomagnetotelluric-resistivity (RMT-R, 12-240 kHz), Journal of Applied Geophysics 31, 133-143.

  •  18) Zonge K.L., Hughes L.J. Controlled source audio-frequency magnetotellurics. Electromagnetic methods in applied geophysics. V. 2 - Applications. Series: Investigations in geophysics, No 3, 1991, p. 713-809.